1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7683fdc998f8645fb17152dae81015bde441d893eb91790eb8c2890038d89e7b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8544f87b-b658-4fbb-86ac-b6efdb55a150.json and https://artists.proofprofile.net/proofs/artist/8544f87b-b658-4fbb-86ac-b6efdb55a150.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5fb31d77637c3bbb980463cc411239a61aeb57ab344b422256c9e64ff3f64b. Chain 2 (Bitcoin): anchored in block 957730 (2026-07-12T16:41:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA320900561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8fe11cdc00a7c83643aa3e46fb53565d2a96142489d3449c16221cd78e9765. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA320900563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4f5219ed5c5ca979ffb7ceafc7565d4ecf244ec2c92045d0cebe83c078fa4e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM71500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2405ca7fd9e5fd6766b0c470c22b35e650e2d600008a4f3a0b812ddd2efaea9. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM71500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f7863ff28d533af6082966e9d53014ded92984215ff51599e161b3a3bbf249. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:34:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM71500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dccf52e2bd28096e1021d31439190e8b01ffd4875178bbdb1c7a6595c38ad5. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM71500052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f1e4d451c30fd940472d4fbd4186c5db6f394f14d2a1fa66adc97f21731a75. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM71500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a0dc874e9f77f6f0f8f2464ba782bfb14d345b0d4aa5ce347bf68320f81ddf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM71500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e23f6dcff34aa24d29cbcfc1d565664f7e0b781f7fa2c49c275aaf15baf6d07. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM71500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155cbc947d2bb9c617958db00b4078f571c87cb585cf05999e33a62dd29f462e. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM71500057.
Dream Lullabies - Beautiful Music For Babies And Mothers (Vol.5)
Dream Lullabies - Beautiful Music For Babies And Mothers (Vol.1)
Dream Lullabies - Beautiful Music For Babies And Mothers (Vol. 2)
Dream Lullabies - Beautiful Music For Babies And Mothers (Vol. 6)
Dream Lullabies - Beautiful Music For Babies And Mothers (Vol. 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0832c69dc59f883041fde9632fc04b7355db58f37fdd300466ff9857f48b41. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM72000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3401d503e3004a5d4b7a84fa2a02739b822f166a05cad0c400826de303b29d9. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:33:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM72000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c934e13aa46fc5b95e3835df90174de3d09a6b00e7b4589063358c3d207413. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM72000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c25a628246ea176adc1c15dee6a27239ecf2c07ade3521818c374a85b0ef86. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM72000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9144d6cfa73c49d741f8899f4cff6fda30fdcee2344b0c510082614b407ff1ef. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUUM72000100.